My '89 V6 idles way too fast. I have cleaned the cable several times, but it starts to do it after a few weeks. Have any of you experienced this? The tech says its a dirty cable, but it just cannot be. I am fairly sure it is not the choke.

OK, nobody else is answering, I'll say it. You have to provide meaningful information if you want to get a meaningful answer. Anything said for your question would just be a shot in the dark. You have to say what you have done so far and exactly what the results were, details, details. I'm not a V6 expert, but if you ask the question right, there might be somebody here to answer.

simple answer: Turn it down.

complicated answer: Probably the dash pot sticking.

I wasnt using mine for a while when I lost the screw. Helped alot. Now I got the screw back in and just turned it so that it hits the plunger ever so slightly.

Does the dash pot actually have a purpose. Seems like one of those meaningless items, like your apendix.:flipoff2:

What is a dash pot??? The only parts the manual references are the Throttle valve and position sensor. How do I know if they are bad? I have adjusted the idle screw as far as it will go, and still getting the racing engine. There is not space between the stop screw and lever, just as there should not be. After the linkage goes back to its normal position, I can give it a hard counterclockwise turn of a few centimeters and the engine slows. But when accelerating, it goes back to the fast idle.

Have you experienced this before? Would loosening and turning the throttle position snesor do any good?

I would get a new cable, unless you have a motorcycle cable luber, then you can shhot a can of brake cleaner through it, remove cable 1st...then shoot some lube into it.

I have no idea what the problem is, but ...

First - don't go messing with things if you don't what they're for (i.e. idle screw). Think this way - if an adjustment thing didn't change and engine characteristics did, it's probably not because of the thing that didn't change.

Typically, things like idle screw, AFM mixture, TPS position (assuming it hasn't slipped) don't need to be touched - it's usually something else, like a bad sensor or ground wire.

Try cleaning the throttle body - they get gooey.
Check the TPS for both operation (voltage) and position (capacitance).
Check for sensor messages in the ECU.